Because that is what it is. It creates optical effects, makes us see things which are impossible or seem to be what they are not.
A device that convert one form of energy into another form is called the transducer. so optical transducer is a device that can convert electric energy into optical energy.
op art
International Scientific Optical Network
CD-RW
Optical memory is an early form of computer memory. It involves the use of an optical system for the writing and reading of data to and from a computer's main memory.
As microscopes they did not but they were the first form of optical magnification, so were to lead to the development of optical telescopes.
optical character recognition
Optical Bar Reader
what was Mesopotamia often called
full form of OCR is Optical Code Reader
Optical quartz is a high-purity form of quartz crystal known for its excellent optical properties, including transparency and low birefringence. It is often used in the manufacturing of optical components such as lenses, prisms, and windows, particularly in applications requiring precise light manipulation. Due to its stability and durability, optical quartz is also utilized in scientific instruments and telecommunications. Its unique properties make it essential in various fields, including electronics, photonics, and spectroscopy.
OCR - Optical Character Recognition. Often ships with the scanner you buy, but can purchased separately.